private void OnGroupInfoReturned(object sender, GetGroupInfoEventArgs e)
{
JObject rootJson = JObject.Parse(e.Response);
JObject json = (JObject)rootJson["group"];
FlickrGroup group = FlickrGroupFactory.GroupWithJObject(json);
if (group == null)
return;
group.IsInfoRetrieved = true;
var evt = new GroupInfoUpdatedEventArgs();
evt.GroupId = group.ResourceId;
GroupInfoUpdated.DispatchEvent(this, evt);
}
public async void GetGroupInfoAsync(string groupId, Dictionary<string, string> parameters = null)
{
string timestamp = DateTimeUtils.GetTimestamp();
string nonce = Guid.NewGuid().ToString().Replace("-", null);
Dictionary<string, string> paramDict = new Dictionary<string, string>();
paramDict["method"] = "flickr.groups.getInfo";
paramDict["format"] = "json";
paramDict["nojsoncallback"] = "1";
paramDict["oauth_consumer_key"] = consumerKey;
paramDict["oauth_nonce"] = nonce;
paramDict["oauth_signature_method"] = "HMAC-SHA1";
paramDict["oauth_timestamp"] = timestamp;
paramDict["oauth_token"] = AccessToken;
paramDict["oauth_version"] = "1.0";
paramDict["group_id"] = groupId;
if (parameters != null)
{
foreach (var entry in parameters)
{
paramDict[entry.Key] = entry.Value;
}
}
string paramString = GenerateParamString(paramDict);
string signature = GenerateSignature("GET", AccessTokenSecret, "https://api.flickr.com/services/rest", paramString);
string requestUrl = "https://api.flickr.com/services/rest?" + paramString + "&oauth_signature=" + signature;
HttpWebResponse response = await DispatchRequest("GET", requestUrl, null).ConfigureAwait(false);
using (StreamReader reader = new StreamReader(response.GetResponseStream()))
{
if (response.StatusCode != HttpStatusCode.OK)
{
HandleHTTPException(response);
return;
}
string jsonString = await reader.ReadToEndAsync().ConfigureAwait(false);
if (!TryHandleResponseException(jsonString, () => { GetGroupInfoAsync(groupId, parameters); }))
return;
GetGroupInfoEventArgs evt = new GetGroupInfoEventArgs();
evt.GroupId = groupId;
evt.Response = jsonString;
GroupInfoReturned.DispatchEvent(this, evt);
}
}